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Unlocking JavaScript’s Hidden Math Superpowers

Master the Built-In Methods That Do the Math for You

Max N
3 min readFeb 27, 2024

As a JavaScript developer, you’re probably familiar with basic arithmetic operators like +, -, * and / to do simple math. But JavaScript contains a ton of powerful built-in math methods ready to handle more complex numerical feats.

In this article, we’ll explore some of JavaScript’s underused but easy-to-master math superpowers. Understanding these methods allows you to write cleaner code and focus on the programming instead of the math.

We’ll cover:

  • Rounding decimals up and down
  • Generating random numbers
  • Finding max and min values
  • And more secret math weapons JavaScript keeps up its sleeve

So if you’re ready to do complex math calculations with less code, power up your JavaScript skills with these built-in math methods!

Rounding Made Simple with round(), floor() and ceil()

Rounding decimal numbers is a common need in programming. And in JavaScript, you have three simple methods dedicated for that:

round() — rounds to the nearest whole number
floor() — always rounds down
ceil() — always…

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Max N
Max N

Written by Max N

A writer that writes about JavaScript and Python to beginners. If you find my articles helpful, feel free to follow.

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